The Release That Witch
Chapters 23's

"Come, try to combine these two iron plates," Roland said.

Anna's finger pressed the iron stitch. Fire was released from his finger, melting the interface at a speed visible to the eye.

"Reduce firepower and start again with the reverse side."

Anna nodded her head and did so once more. The two iron plates were welded firmly at a 90-degree angle.

Roland carefully examined the interface and found that the effect was as he had imagined - flawless perfect welds. With a little polishing, traces of liquid iron can be erased. There is no difference with modern welding techniques.

"That's great, Miss Anna, it's amazing!" Roland excitedly exclaimed, "Furthermore, we should also weld these two iron panels into one."

"What's wrong? Iron ... bucket?"

"No, it's a cylinder," Roland corrected.

"Cylinders?" repeat Anna, confused.

"Yes, the cylinder can be filled with air," Roland pointed to another square piece of iron, "You see the small hole on it? Air can get into the cylinder through that small hole, and push the piston. Well, and because the piston diameter is slightly smaller than the cylinder diameter, it can move freely inward. "

Even the genius Anna, in front of so many unknown words, had a question mark over her head, "this ..cylinder, piston, and so on, what does it do?"

"They're needed to make a machine that can move automatically."

The steam engine brought the first industrial revolution, it was the driving force behind human development, completely replacing humans and animals in the world of work.

It was a schematic diagram known to every mechanical engineer, to describe it in simple words, it was a larger version of the kettle. Once the water boils, the resulting steam will be induced into the cylinder. There, it will push the piston connected to the pole. Like this, heat energy is converted into mechanical energy.

The principle is very simple, but by no means easy to make. The difficulty lies in the sealing of cylinders and pistons, as well as the production of gas pipes. Without proper metal processing skills and relying solely on manual forging, making usable cylinders would only be a dream.

However, with the help of Anna's abilities, she could make up for their manufacturing skills shortage.

After much previous planning, Roland came up with a design using four iron plates of the same size, like this, so the blacksmith could easily grind them. Then the iron plates would be welded together at a 90 degree angle by Anna. Like this, it is possible to get a very rigid square cylinder. With Anna's help, she didn't need to use the traditional production process. First they created a tube-shaped drilling machine, and then processed it to make a circular cylinder . Other large parts, too, can be divided into small pieces and then welded together. In this way, it is even possible to produce it in a small workshop. In this way, they were able to produce all the components needed for the steam engine.

In fact, before welding was invented, one could only rely on connecting small pieces by bolting or riveting. Since the internal cylinder had to be smooth, the normal connection method obviously could not do this.

The only problem is the gas pipe. The production process was nothing special, it needed to be heated to a red color, then the groove could be forged into the right shape; this was also a method to produce a front-loading flintlock rifle barrel. Later the barrel just need to straighten and balance the rifle etc., nothing too complicated.

The problem was that Roland could not possibly summon the blacksmith to the garden behind the castle, as it was still unknown that Anna had not been executed. Blacksmithing was not one of their strength, but in a desperate attempt, they had to let the head knight do it, under Roland's own command.

After waiting for three days, Roland finally had the first steam engine standing in his backyard.

"Is this the powerful machine you're talking about?" Carter frowned at the sight of the strange machine, but he had confirmed directly that this machine had nothing to do with magic. Each iron plate was personally self-printed, and to him, it only looked like a sealed furnace. There's no way the devil would be interested in her.

But how could it move a pile of iron upwards? He looked very clumsy and had no legs, could he possibly fly?

But in Roland's eyes, this simple-looking machine exuded the beauty of modern industry. Standing on the shoulders of giants, he naturally did not need to find a Newcomen steam engine - or Watt steam engine, but rather he built a better steam engine. The first prototype was already a high-pressure steam engine with double connecting rods and sliding valves. To make it better than most original steam engines, the key lies in some of the newer innovative ideas.

"Soon you will understand."

Roland poured a bucket of water into the steam room and had Anna light the firewood.

Ten minutes later, the water boiled . Immediately, a creaking sound sounded from the cylinder. Roland knew it was the sound of a thermal expansion cylinder. The expansion of the thin iron piston is much larger than the cylinder and will eventually press the cylinder wall firmly.

"Isn't this a water kettle? I didn't think it was really going to be a furnace" Carter murmured.

As the cylinder was filled with steam, a splashy scene appeared. The piston rod begins to push outward, and when the motion is at its peak, the other rod will pull the sliding valve, allowing the steam to push the piston inward again. The wheels connected to the two poles would spin very quickly through this movement, and with the increase in power, the speed very quickly reached its peak.

The face of the knight's head was filled with astonishment, the huge iron wheel he needed to put up a lot of strength to install, now spinning like a light as a feather . Standing beside the steering wheel, he could even feel a new wind - this only showed the tremendous power of the steam engine.

In his heart, a trace of anxiety gradually appeared.

His Majesty said that it could replace the power of humans and animals, and it didn't seem like he was lying . When placed on top of a horse-drawn carriage, it would be extremely difficult for the 10 knights to withstand its ruthless might.

Training a qualified knight took fifteen years, but the manufacture of such a machine only took three days. If the blacksmith only worked part-time, it would still take a week.

It does not require eating and is not afraid of cold or hunger. He was not afraid of arrows and swords. Just put a ram in front of him, and it could bring tantrums on the battlefield.

As a traditional knight .. is his existence still necessary?

*

In the evening, when Roland returned to the bedroom, Nightingale once again waited for him.

This time, she did not wear a veil, and she smiled and sat down at the table. His hand was playing around with some parchments, "It seems that the outside rumors are really unbelievable. They said the 4th Prince was stupid and had a bad character, in fact, he should not have any learning or skills . In fact, compared to a court master he would not have time for courtesy. The picture on this paper, is this the plan for a steam stove? You call it ... the steam engine, right? "

Shoot it! Can't I get a little privacy? Come and go as you wish, do you think this is your home ?! In her heart, Roland cursed her nonstop, but she still replied with a calm face, "Yes that's the plan, but without Anna's help, it's forever just a picture."

"What can he do?"

"Many, it can help ore transport, drainage, metal fabrication, forging, wherever strength is needed, it can play a role."

"Then I will take it," with these words Nightingale took the parchment and placed it on her robe, "The Witch Cooperation Association also has witches with fire power."

"Hey-y"

He shook his head to stop Roland's protest, "Of course, I didn't just take your stuff, look at this first before complaining." He put a little white stuff on the table.

When Roland went to the table, he discovered that it was actually a scroll of paper.

He gently expanded the scroll, and swept through the contents, "This is ..."

"The secret letter sent by the pigeons," Nightingale explained to him in an excited tone, "the recipient is your maid, Tyre, ck, it seems your harem is unfaithful."

"I haven't touched it yet" Roland frowned.

Tyre, he could remember that he seemed to be following her from a very early age, and the former 4th Prince seemed to be interested in her, but unfortunately he failed to succeed in conquering her, he could only harass her a few times. Here, in Border Town, in order to prevent the long wait of his personal servant, he obtained the room next to him. He did not expect this was actually an arrangement made by one of his siblings.

Although this letter was not signed, but according to its contents, he could judge, the letter was sent by one of his siblings. In the letter it was revealed that the author was very unhappy with the final failure, but the riot plans in Longsong Fortress were not allowed to fail again.

Actually, the first plan must have worked, he thought, or he would never be Roland Wimbledon.

It was impossible for this letter to be faked by Nightingale, as only the people involved in this conspiracy were aware of the first murder plot. And if Nightingale wanted to kill him, it wouldn't be a problem for her.

"How could you steal this from him?"

"Your servant, Tyre, is not stupid, his intention was to burn the letter after reading it. Unfortunately, she threw away her face when I was behind her," She did a sweeping action of something, "So, how do you want to handle this? Do you need my help to 'deal' with him? "

Roland naturally understood what he meant by 'deal', so he hesitated for a moment, then he finally nodded, "I have to trouble you." She doesn't have the confidence to do this kind of thing herself, "if you can. ask her who the person in the dark is."

"As for Your Majesty," Nightingale smiled as she saluted, "Well, this will be a gift for drawing the steam engine."